Tina Brown gets things done. She’s been a leader since her mid-20s, and she’s built the teams that transformed Vanity Fair and the New Yorker. She also created The Daily Beast. Brown grew up in England and became a media mogul in New York. Editors and writers have often questioned her most ambitious plans, but her resume is marked by major successes. A huge exception is a short-lived media brand called Talk that she launched with, of all people, Harvey Weinstein. Today she runs the Women in the World Summit, which highlights the stories of people fighting for women’s rights around the world. It’s allowed her to inspire a new generation of leaders.